External JS and CSS Files

[baxing]

If "/myIWProject.dll" is normal standard path of ISAPI please advice me for declare css or js file path to me for work fine on both SA and ISAPI.

such I want to refer to 
- CSS files : "assets/mycss.css" in folder wwwroot
- JS files : "assets/myjs.min.js" in folder wwwroot

How should I give string argument to AddBodyScriptFile and ContentFiles?
Now I using :

ContentFiles.Add('/assets/mycss.css');
PageContext.AddBodyScriptFile('/assets/myjs.min.js');

Them work fine for the SA but doesn't work for the ISAPI.

Thanks